You must understand. The goal is not to make the walls of the Tantive white
Neither is it my goal. I tried to reduce a cast which is layed on the hole shot, not to change the color of the walls (you can see that there is a very subtle mint color in my version, but perhaps a little to blue as I said).
Actually, it could be closer to how the set would look under a neutral lighting, and of course, the actual lighting was not exactly white, so the highlight should probably be slightly warmer.
But, if you look at the black areas under the red lights on the back ground, they have no reason to be greenish and should be redish. But of course, a green cast can be the consequence of the printing process.
Aniway, those color choices (because there has to be a choice, even with many references) are not simple. 😃